OK, so say I know this guy who has a saltwater set up. Originally, he only wanted fish. He advanced and became more confident in the hobby and progressed to corals. Softies, LPS, then on to some SPS. Now, this individual would like to add a clam. BUT, I hear he has a dragon wrasse, yet a juvenile and not starting any trouble yet though. I am not sure if he can catch him in order to remove him. If this person adds a clam, are the chances of him getting eaten pretty good?..because of the dragon wrasse?